| 摘要 |
<p>In order to achieve the downsizing of a nozzle part and decrease fuel consumed by the nozzle part, provided is an operating method of a marine internal combustion engine, the marine internal combustion engine including: a combustion chamber that receives supply of air and fuel to generate rotational driving force and discharge exhaust gas; a supercharger that is driven by the exhaust gas discharged from the combustion chamber to supercharge the air supplied to the combustion chamber; a denitration unit that houses a catalyst that reduces nitrogen oxides contained in the exhaust gas discharged from the supercharger; a burner unit that is disposed between the combustion chamber and the supercharger, and injects the fuel to the exhaust gas to combust the fuel; and a power generation unit that is driven by the supercharger to generate electric power, the operating method including increasing/decreasing an amount of power generated by the power generation unit such that a pressure of the supercharged air supplied from the supercharger to the combustion chamber is constant irrespective of a temperature change in the air taken in by the supercharger, in a case where an engine load is the same.</p> |
